TWI407784B - Set-top box and autostanby method thereof - Google Patents

Abstract

The present invention relates to a set-top box. The set-top box is connected to a television via a High Definition Multimedia Interface (HDMI). The set-top box includes a transmitting module, a reading module, a judging module, and a controlling module. The transmitting module is configured for transmitting a number of reading signals to the television via the HDMI. The reading module is configured for reading a number of feedback signals from the television when the television is working. If the reading module does not receiving the feedback signals, the reading module outputs a number of idle signals. The judging module is configured for judging the television is in a working state while receiving the feedback signals to output a starting signal, and judging the television is not in the working state while receiving the idle signals to output a standby signal. The controlling module is configured for keeping the set-top box in working state according to the starting signal, while controlling the set-top box to be placed in standby state according to the idle signals.

Description

TV set top box and automatic standby method thereof

The invention relates to a television set top box and an automatic standby method thereof.

Previous set-top boxes are set with a standby power-saving mode to reduce the energy consumption of the set-top box when the TV is not in use, and to reduce the use time of electronic components in the set-top box and extend the life of the set-top box. However, the previous method of switching to the standby power saving mode is usually to switch using the remote control, or to press the standby button on the set top box. However, in daily life, most people often turn off the TV after watching the TV, and forget to turn off the set-top box or switch the set-top box to the standby power-saving mode, thereby consuming energy and causing the life of the set-top box to be shortened.

In view of the above, it is necessary to provide a television set top box capable of automatically setting a standby mode and an automatic standby method thereof.

A television set top box connected to a television set by a high definition multimedia interface (HDMI). The set top box includes: a transmitting module for transmitting a read signal and transmitting to the television through the high definition multimedia interface; and a reading module for reading from the television when the television is in a working state Output and feedback information output via the high-definition multimedia interface, when not read back When the information is fed, the idle signal is output; the judging module is configured to judge the working state of the television according to the feedback information or the idle signal, and if the feedback information is obtained, determine that the television is in a normal working state, output a start signal, and obtain an idle signal. And determining that the television is in a non-working state, outputting a standby signal; and a control module, configured to control the TV set-top box to maintain an operating mode according to the activation signal, or control the television set-top box to enter a sleep mode according to the standby signal.

An automatic standby method for a set top box connected to a television set by a high definition multimedia interface (HDMI). The automatic standby method includes the steps of: transmitting a read command and transmitting to the television through the high definition multimedia interface; when the television is in an active state, the reading is output from the television and transmitted through the high definition multimedia interface The feedback information, when the feedback information is not read, outputs an idle signal; determines the working state of the television according to the feedback information or the idle signal, and if the feedback information is obtained, determines that the television is in a normal working state, and outputs a start signal if When the idle signal is obtained, the television is judged to be in a non-working state, and the standby signal is output; and the television set-top box is kept in the working mode according to the activation signal, or the television set-top box is controlled to enter the sleep mode according to the standby signal.

The television set top box of the invention, the television set top box using the set top box and the automatic standby method control the set top box according to the working state of the television, so that when the television is in the shutdown or standby state, the control module controls the set top box to automatically switch to In standby mode, the TV set-top box works normally when the TV is in normal working condition. Thus, when the user forgets to turn off the set-top box When the TV is in the shutdown or standby state, the control module can force the TV set-top box to be in the standby power-saving mode, which is energy-saving and environmentally friendly.

100‧‧‧TV set top box

110‧‧‧ processor

120‧‧‧High-definition multimedia interface

10‧‧‧Send module

20‧‧‧Read module

30‧‧‧Judgement module

21‧‧‧Time unit

40‧‧‧Control Module

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the use of the television set top box of the present invention.

2 is a functional block diagram of a preferred embodiment of the television set top box of FIG. 1.

3 is a flow chart of an automatic standby method of the present invention.

The invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the present invention provides a television set top box 100 having a processor 110 and a high definition multimedia interface (HDMI) 120. The processor 110 uses the HDMI 120 and a television. The machine 200 is connected. The processor 110 includes a transmitting module 10, a reading module 20, a determining module 30, and a control module 40. It can be understood that the sending module 10, the reading module 20, the determining module 30, and the control module 40 can also be electrically connected to the processor 110 and used as an external device of the set top box 100.

The transmitting module 10 is configured to periodically send a read command to the television 200, and transmit the HDMI 120 to the television 200 to request the television 200 to send data to the processor 110. When the television set 200 is in an active state, the television set 200 transmits an extended display identification material (EDID) to the processor 110 in accordance with the read command. Among them, EDID is a video electronic standard association (VESA) standard data format, which contains TV 200 parameters, such as supplier information, maximum image size, color settings, vendor presets, frequency range limits, and electricity. A string of the name of the camera 200, the serial number, and the like. When the television 200 is in the working mode, the television 200 receives the read command sent by the transmitting module 10, and sends the EDID to the processor 110 through the HDMI 120; when the television 200 is in the standby or power-off state, the television 200 The read signal sent by the transmitting module 10 is not reacted, that is, the EDID is not sent to the processor 110. In this embodiment, the HDMI 120 includes a transmission line supporting an I2C protocol, and the EDID is transmitted in a transmission line based on the I2C protocol. According to the I2C protocol, the EDID includes an acknowledgement code (ACK). Specifically, the EDID is a multi-byte information, and the ACK exists in a predetermined word position of the EDID, for example, the 8th bit. When there is an ACK, the value of the 8th word of the EDID is “1”, otherwise It is "0".

The reading module 20 is configured to read feedback information output from the television 200 and transmitted via the HDMI 120 when the television 200 is in an active state; when the reading module 20 does not read the feedback information, the output is output. Idle the signal to the judgment module 30. In this embodiment, the feedback information is the EDID. In this embodiment, the reading module 20 includes a timing unit 21 and is preset with a predetermined time. When the reading module 20 does not obtain the feedback information, the timing unit 21 first performs timing. When the time calculated by the unit 21 is equal to the predetermined time, the reading module 20 outputs an idle signal to the determining module 30. It can be understood that the predetermined time can be set according to specific needs, for example, it can be 10 seconds, or other values.

The determining module 30 is configured to determine the working state of the television 200 according to the feedback information and/or the idle signal. If the feedback information is obtained, it is determined that the television 200 is in a normal working state, and the determining module 30 outputs the starting signal; Signal, it is judged that the television 200 is in a non-working state, and the judgment module 30 outputs Standby signal. Specifically, the determining module 30 confirms that the reading module 20 obtains the feedback information by determining that an ACK exists in the EDID. For example, the determining module 30 determines the 8th word position of the EDID. If it is "1", it indicates that the EDID includes an ACK, indicating that the television 200 responds to the read signal sent by the sending module 10, and the television set at this time. The reading module 20 obtains the feedback information, and the determining module 30 outputs the activation signal. When the television 200 is in the shutdown or standby state, the television 200 has no EDID output, and the reading module 20 The idle signal is output, for example, “0”, and the determination module 30 determines that the television 200 is in an idle state, and outputs a standby signal to the control module 40.

The control module 40 is configured to control the set top box 100 to maintain an operating mode according to the activation signal, or control the set top box 100 to enter a sleep mode according to the standby signal. Specifically, when the determining module 30 outputs the activation signal, that is, when the television 200 is in the working state, the control module 40 controls the set top box 100 to maintain the working mode, and the reading module 20 continuously receives the EDID transmitted from the HDMI 120. It can be understood that the set top box 100 can include an operating mode and a standby mode. The control module 40 is connected to a switching unit (for example, a programmable single chip microcomputer or a software switch or the like, not shown), and the switching unit can be controlled according to the control mode. The start signal or standby signal of the group 40 switches the set top box 100 to the standby mode or the working mode. It can be further understood that, after the set top box 100 is switched to the standby mode, the sending module 10, the reading module 20, the determining module 30, and the control module 40 are all in working state, and other functional modules of the set top box 100 are in operation. (such as audio/video processing module, etc.) is in standby mode.

The TV set-top box 100 automatically controls the set-top box 100 to be in the standby mode when the television set 200 is in the power-off state or the standby state according to the feedback information or the idle signal of the television set 200, and does not need to control the set-top box 100 to enter the standby mode by manual operation. Mode, avoiding wasting power due to human factors.

Referring to FIG. 3, the present invention also provides an automatic standby method for use in the set top box 100. The method includes the following steps: Step S301, a read command is periodically sent and transmitted to the television set 200 by the HDMI 120.

Step S303, when the television set 200 is in the working state, the feedback information outputted from the television set 200 and transmitted via the HDMI 120 is read, and when the feedback information is not read, the idle signal is output. In this embodiment, the feedback information is the EDID, and the EDID includes an ACK. In addition, a preset time is preset in the set top box 100. When the set top box 100 does not obtain the feedback information, the set top box 100 performs timing, and when the calculated time is equal to the predetermined time, the idle signal is output.

Step S305, determining the working state of the television set 200 according to the feedback information and/or the idle signal. If the feedback information is obtained, executing step S307, determining that the television set 200 is in a normal working state, and outputting an activation signal; if an idle signal is obtained, executing In step S309, it is determined that the television 200 is in a non-operating state, and the standby signal is output. Specifically, it is confirmed that the feedback information is obtained by determining that there is an ACK in the EDID. For example, to judge the 8th word of the EDID, if it is "1", It indicates that the EDID includes ACK, indicating that the read signal sent by the television 200 responds. At this time, the television 200 is in a normal working state, the set top box 100 obtains the feedback information and outputs an activation signal; when the television 200 is turned off or In the standby state, the television set 200 has no EDID output, and the set top box 100 outputs an idle signal, for example, “0”, thereby determining that the television set 200 is in an idle state, and outputs a standby signal to the control module 40.

After the start signal is output, step S211 is performed to control the set top box 100 to maintain the working mode according to the start signal.

When the standby signal is output, step S213 is executed to control the set top box 100 to enter the sleep mode according to the standby signal.

The television set top box 100 and the method thereof according to the present invention control the set top box 100 according to the working state of the television set 200, so that when the television set 200 is in the shutdown or standby state, the control module 40 controls the set top box 100 to automatically switch to the standby mode. When the television set 200 is in a normal working state, the set top box 100 operates normally. Therefore, when the user forgets to turn off the set top box 100 and the television set 200 is in the shutdown or standby state, the control set module 40 can force the set top box 100 to be in the standby power saving mode, thereby avoiding wasting power due to human factors, saving energy and protecting the environment. .

In addition, those skilled in the art can make other changes within the spirit of the invention, and all changes which are made according to the spirit of the invention should be included in the scope of the invention.

100‧‧‧TV set top box

10‧‧‧Send module

20‧‧‧Read module

30‧‧‧Judgement module

21‧‧‧Time unit

40‧‧‧Control Module

Claims (7)

A television set top box connected to a television set by a high definition multimedia interface (HDMI), wherein the set top box comprises: a transmitting module for transmitting a read signal and transmitting by the high definition multimedia interface a reading module for reading feedback information output from the television and outputting through the high-definition multimedia interface when the television is in a working state, and outputting an idle signal when the feedback information is not read The judging module is configured to judge the working state of the television according to the feedback information or the idle signal, and if the feedback information is obtained, determine that the television is in a normal working state, output a start signal, and if the idle signal is obtained, determine that the television is in a non-determination a working state, outputting a standby signal; and a control module, configured to control the TV set-top box to maintain an operating mode according to the activation signal, or control the television set-top box to enter a sleep mode according to the standby signal, wherein the reading module includes a timing unit And preset with a predetermined time, when the reading module does not obtain the feedback information, by the When the counting unit, when the timer unit calculates a time equal to the predetermined time, the reading module output signal to the idle determination module. The television set top box of claim 1, wherein the high definition multimedia interface comprises a transmission line supporting an I2C protocol, and the feedback information is transmitted in the transmission line based on the I2C protocol. The television set top box according to claim 2, wherein the feedback The information is an extended display identification data (EDID), and the extended display indicates that a confirmation character (ACK) exists in the identification data, and the determination module confirms that the reading module obtains the feedback by determining the confirmation character in the extended display identification data. News. The television set top box according to claim 3, wherein the extended display identification data comprises a complex digital bit, and the determining module determines whether a predetermined word bit (ACK) exists in the preset word bit. An automatic standby method for a set top box connected to a television set by a high definition multimedia interface (HDMI), wherein the set top box is preset with a predetermined time, the automatic standby method comprising the steps of: sending a read command And transmitting to the television through the high-definition multimedia interface; when the television is in operation, reading feedback information output from the television and transmitted through the high-definition multimedia interface, when the feedback information is not read , output idle signal; judge the working state of the television according to the feedback information or the idle signal, if the feedback information is obtained, determine that the television is in a normal working state, output a start signal, and if the idle signal is obtained, determine that the television is in a non-working state And outputting the standby signal; and controlling the set-top box to maintain the working mode according to the start signal, or controlling the set-top box to enter the sleep mode according to the standby signal, wherein the automatic standby method further comprises the step before the step of outputting the idle signal : When the TV set-top box did not get this back When information, set-top boxes for timing, when the calculated time is equal to the predetermined time, the idle output signal. The automatic standby method according to claim 5, wherein the back The feed information is transmitted in the high definition multimedia interface according to the I2C protocol. The automatic standby method according to claim 5, wherein the feedback information is an extended display identification data (EDID), and the extended display identifier data has an acknowledgement character (ACK), and the extended display identification data is determined by determining The confirmation character in the middle confirms that the reading module obtains the feedback information.